Operating mechanism for ice-cream freezers



July 6,1926. I 1,591,331 f v I F. G. SCOTT OPERATING MECHANISM FOR ICECREAM FREEZERS Filed o t. 20, 1924 2 Sheet-Sheet 1 o J 7 f/ I v o o Q vV a7 Jib- 1. I 0

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i O i 'INVE T R WITNESSES I 26 "a ax; .afi

ATTORNEYS Jul 6 1926.

F. G. SCOTT OPERATING MECHANISM FOR ICE CREAM FREEZERS Fil ed Oct. 20,1924 2 Sheets-Sheet 2 INVENTOR 1 J fi cot.

ATTORNEY.

Patented July 6, 1926.

UNITE-D;

" ritenxen'rmisslcortr, or ivnwonnrinns; LouIs aNA.l','-e

Ii M H IS Q I c hpplieationnled October 20,i:192 4;- =Seria1v me -44752.:

This'inventionrelates generalto ice cream freezers, and moreparticularly to an improved operating mechamsm and-mounts ing andholding meansflfor the ice creanr freezer.-

' 'The object the presentginvention is to provide a device-of thischaracter whereby the personoperating the .icecream freezer may utilizean easy back andforth or oscillating movement to impart acontinuousrotarymovement-to the dasher shaftof the ice cream freezer;

V A further object is the provision of aideviceof thischaracter in whichthe. parts may be easily j assembled and disassembled and yet whenassembled provides a'strong and rigid structure. which is smooth, easyand noiseless inits-dperatiori.

A further-object is the'provision-of a de Vice of this character whichis of-simple and durable construction, reliable and efliclent-lnoperation and easy andcomparatively inexpensive tomanufacture. V

-Other objects and 1 advantages reside in certain novel features of theI construction, arrangement and combination o fparts which will behereinafter more fully described and particularly pointed out I in theappended claim, reference being had to the accompanying drawings,forming. a part of :this

specificatiom'and in which: v p Figure 1.18 a view partlyln sectioniandpartly in elevationshowing'one embodiment i of the'invention,

rocker; 1. r

c Figure 2 is a view-insection taken ap- I proximately on the line 22 ofFigure 1,

Figure 3 is a detail view in section on' the line 33 of Figure landshowing the structure of the pawl's employed,

Figure 4 is a detail perspective view of can-in iplace,

Figurefii is one ofthe lugs of the tub for holdingthe a detaillvie'wy inplan of the FigureG is a. detailview in plan of the frame and itsattaching means, t

' Figure 7 is a detail View 'illu'stratingthe metal strips of theCanwhich co-act withthe lugs in the tub for holding the canagainstangular movement, a c

"Figure 8 a detail .perspective'view of one of the fixed attaching'ylugsonthe tub for the frame of the operating mechanism, andk formed :with :a'polygonally shaped 1 and ta- Figure-9 isaisiniilaiiview of theswingable attaching lug employed. I

Referring to the drawings, the numeral 1 designatesan icelcream:fre'ezertub which may be of conventi0nal; form, and'whichincludes a cylindricalbody :2 :anda bottom 3. l:he tub 1v is designed to receive the usual can4; "and in order 'to:hold the can 4against angular movement in the tubanumber of strips 5 are fixed-to thebottom of the can and have theirouter portions-.6; projecting beyond the peri-pheryhoiithe can see-Fig.7). The portions 6 of the. strips 5' aredea signed to engage lugs 7,fastened,as at-S', to the bottom. 3. of the tub} f V I a The i dashershaft 10 ,operates in the can I ,4 in thekusual manner and? carries the:usual paddles ,11.- At. its upper 8 end theidasher shaft 10 is provided'w'ith taperedv and 5;;

polygonally formed portion 12; -A gframe,

designated generally at 13, is designed for supporting the operatingmechanism for the 3 dasher shaft; lOJand as shown, to advantage in Figs.land 6, this frame consistsvofa bar of metal extended diametricallyof'the tub and having arcuate extensions 14' at-itsends designed torest-on portions of the: top of the cylindrical body-2 of the tub.'Thegar- 'cuate extensions l4-are provided with lips 15,-tl1ree of whichlco-aotiwithjfixed L-shaped 'lugs 16 fastenedto theio'utsiderofathe tub.

V beplacedonrthe topaof'the tub withthe lips "-15;angularly=--spacedfrom the: circumferen It is tobe understood that the frame131 may tiallyextending portion-170i the L-shaped lug'16 and that the'frame-liimaythenbe rotated to'brin'g' the lips l5; beneath the circum ferentiallyextending portions 17 ofzthelugs 16 .(see Fig.' 8). 'QA.swingingzL-shaped lug 18 is also provided and .is pivotally mounted,

as at 19, onpthe cylindrical body 210i the tub, The lug lS'may be swungout-otthe way "of its lip 15,01 it may beswung over the lip 15to'holdthe saine in position, 1A

a .The 'frame-18 is formed I with seats 22 on which the lower pivotedlocking lug 20 isprovided for secur-' sing the swinging lug-18 inengagementwith rits lip 15. 11, p r

ends'23 of an inverted V-shaped' bracket 24 IPA- beveledpini'on 26is-provided 'and is pere'd socket 27 'into which the tapered and "restandtowhich the lower ends 23jofthe "bracket are secured by bolts, andnuts 25;

I dasher shaftlO is snugly fitted, whereby the pi on 26 iS movahly fixedto the dasher shaft. A stud 28 is integrally formed with the pinion 26and is rotatably fitted in a socket 29 provided on the underside of thebracket 24. In order to hold the pinion against accidental displacementwhen i the framev13 is lifted off the dasher shaft, the pinion 26 isformed with a .depending'am nular flange 30, "which. is rotatably fittedwithin an upstanding annular flange 31 pro.-

7 vided'on-the frame '13; It is; not necessary that these flanges and31'provide a bear ing since the pinion 26 is carried by'the. dashershaft which has the usual bearing in the bottom of the can 4 and in theopening 21 through 13.

- An axle 32 is mounted in the uppermost portion -of.- the bracket 24and extends on each side. of the bracket. As clearly shown in Fig. 2 apair ofv oppositely disposed: bevel gears33 areimountedon the oppositeends ofthe axle 32, one gear 33beingiarranged on oneside of the bracket24 and adjacentone end ofthe axle and the other. gear being arranged onthe opposite side ofthe bracket and'adiacent-the opposite endof theaxle,

Nuts 34 'are threaded ontothe axle 32 to prevent-accidental:displacement of the gears 1 provided and includes two 'divergingarms37-which are fulcrum'ed at their junctureon the axle 32infbetween thegears 33. Preferablythefrockerincludes a pair: of spaced metallic plates38 (see Fig. 5) of approximat'ely V shaped forin,anda pair of woodenhandles 39 arranged in between the plates 38 stantial distance from thecenters of: the

and secured thereto. The handles 39 proj'ect beyond the plates at theirouterends andterminate, at their inner ends ata sub- 7 pl ates s'o thatthere is an openingbetween the intermediate portions of the plates 38.

, Elie platesi38 at their" centers are fulcrumed onthe' axle 32,'theplates having openings 40 in which the aXle' 32 is rotatably fitted. Asshown in Fig. 2 the plates 3'8 are on. the opposite sides of-the bracket24. Spacing washers 41 are provided between the plates 38' and 'thegears 33. At equal distances from the center or axis of the rocker,cross arms 42 extend transversely between the plates 38. Eachcross armmay beintegrally formed with one plate and may have a tenon and mpestely disp e pawls 45 P vided. and are pivotally mounted on the crossarms 42; .Each pawl includes a body portion 46 having a pair of cars 47adjacent one end, theearsr47 straddling the cross arm 42 'on which thepawl is mounted: and being pivotally connected to such cross "arm by apivot pin 48. -'Tl18 body portion of, each 43 at its other end insertedin a socket 44 in the other plate (see Fig. '3). Transversely' pawl 46in between the earsand rearwardly of the body portion is cut-away, as at49,, to

provide the clearance necessaryto permit the pawl to rock or swing. Theend of the pawl remote from the. pivot'pin 48 is-reduced and beveled, asat 50,:andthis reduced and beveled end is designed 'to. co-act with theratchet teethfor which the. pawl is. provided; f T a With thisarrangement when the device has beenassembled with an ice cream can,tubv and dashershaft, as" shown in Fig. 1 and the. handles or either ofthem grasped and rocked up and down the. dasher shaft will becontinuously rotated in one direction for when one of the. pawls 45 isplaying idly down overthe beveled faces. 35?- of its teeth the otherpaw-1' is engaged with a flat face 35 of a tooth of one of the gears 33:and consequently rotatestheipini0n'26 and shaft 10. The other. gearisrotated'froinv the pinion 26. but. moves idly on the axle 32. In thisway the. pawls 45 will alternately drive the gears 33 to rotate the.pinion 26 and the shaft 10 continuously in onedirectionfi Iclaim:

In an operating; mechanism for ice. cream freezers, abracket, a beveledpinion-asse ciated with the bracket, an axleinounted on the bracket, apair of oppositely disposed r.

beveled gears freely rotatable on the axle andineshed with the pinion, aseries of ratchet teeth on eachgear, the ratchet-teeth being oppositeeach other and being located on they confronting faces. of the gears,the

ratchet teeth of onexgear being, reversed with respect to the ratchet"teeth of "the -other, a rocker fulcruined onl the; axle between thegears and having diverging arms made up attheir' centers by spacedplates, transversely extending cross armscarried by. the

spaced plates, and a pawl mounted on each cross arm for each series ofratchetteeth,

each pawl also ext'endingv transversely between the gears and havingareduced and beveled extension co operable with the teeth of the ratchetwith whichit co-acts.

FRANKoEr rs scorn

